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net: context: Add PRIORITY option support

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Add context option support and implement PRIORITY option that
can be used to classify the network traffic to different trafic
classes according to said priority value.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2018-02-07 14:44:04 +02:00 • committed by Anas Nashif
commit 81d8d5219c
4 changed files with 128 additions and 0 deletions
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40
include/net/net_context.h
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@ -210,6 +210,14 @@ struct net_context {
*/
struct sockaddr remote;
/** Option values */
struct {
#if defined(CONFIG_NET_CONTEXT_PRIORITY)
/** Priority of the network data sent via this net_context */
u8_t priority;
#endif
} options;
/** Connection handle */
struct net_conn_handle *conn_handler;
@ -769,6 +777,38 @@ int net_context_recv(struct net_context *context,
int net_context_update_recv_wnd(struct net_context *context,
s32_t delta);
enum net_context_option {
NET_OPT_PRIORITY = 1,
};
/**
* @brief Set an connection option for this context.
*
* @param context The network context to use.
* @param option Option to set
* @param value Option value
* @param len Option length
*
* @return 0 if ok, <0 if error
*/
int net_context_set_option(struct net_context *context,
enum net_context_option option,
const void *value, size_t len);
/**
* @brief Get connection option value for this context.
*
* @param context The network context to use.
* @param option Option to set
* @param value Option value
* @param len Option length (returned to caller)
*
* @return 0 if ok, <0 if error
*/
int net_context_get_option(struct net_context *context,
enum net_context_option option,
void *value, size_t *len);
/**
* @typedef net_context_cb_t
* @brief Callback used while iterating over network contexts